EP2175062B1 - Verfahren zum Reinigen einer Ablauge einer Wasch- oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens - Google Patents

Verfahren zum Reinigen einer Ablauge einer Wasch- oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens Download PDF

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Publication number
EP2175062B1
EP2175062B1 EP09172299.1A EP09172299A EP2175062B1 EP 2175062 B1 EP2175062 B1 EP 2175062B1 EP 09172299 A EP09172299 A EP 09172299A EP 2175062 B1 EP2175062 B1 EP 2175062B1
Authority
EP
European Patent Office
Prior art keywords
washing
cleaning machine
solution
waste
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09172299.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2175062A1 (de
Inventor
Ulrich Nehring
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL09172299T priority Critical patent/PL2175062T3/pl
Publication of EP2175062A1 publication Critical patent/EP2175062A1/de
Application granted granted Critical
Publication of EP2175062B1 publication Critical patent/EP2175062B1/de
Not-in-force legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/20—Arrangements for water recovery

Definitions

  • the invention relates to a method for cleaning a waste liquor of a washing or cleaning machine with a container for washing or cleaning household items, such as laundry or crockery, using lyes, which consist essentially of water and surfactant-containing detergents, a fresh water inlet, a wastewater drain and Have a drain pump, which allows to pump the liquor from the container via a Abpumpstrang in the waste water drain, and a subsequent washing or cleaning machine.
  • lyes consist essentially of water and surfactant-containing detergents, a fresh water inlet, a wastewater drain and Have a drain pump, which allows to pump the liquor from the container via a Abpumpstrang in the waste water drain, and a subsequent washing or cleaning machine.
  • the proposed method also uses the pumped-off washing liquor from a washing section of the laundry treatment program.
  • the respectively pumped out liquor should be fed to a filtration process (reverse osmosis, micro, ultra or nanofiltration), while a further treatment section is carried out in the washing machine. Thereafter, the filtered liquor is supplied to the subsequent treatment section. Both the last used liquor and the permeate accumulated in the filter are finally fed unfiltered to the wastewater drain.
  • the document WO2005051157 A1 shows a dishwasher with a system for water treatment comprising a water treatment tank, which can accommodate at least a portion of the rinsing liquid used during the washing operation of the dishwasher, wherein in the water treatment tank during a water treatment phase using microorganisms, the impurities contained in the rinse liquid are at least partially biodegraded.
  • drum type washing machine has an additional tank, which should replace a ballast weight in the filled state on the one hand. On the other hand, it should serve for the storage of supplied from the fresh water supply fresh water, which should be preheated even by an additional heating. In addition, the last rinse water can be stored for a subsequent washing section.
  • the invention is therefore based on the object to provide a method of the type mentioned above and a suitable washing or cleaning machine, which can serve the needs of environmentally conscious customers in the described question.
  • possibilities for recycling used liquors should not be ruled out.
  • the above-described object is achieved by the characterizing features of claim 1, characterized in that the surfactants contained in the waste liquor are degraded by catalysis and the still remaining in the waste liquor contained undissolved residues are collected in a filter.
  • environmentally harmful surfactants can be kept away from the wastewater of washing or cleaning machines for the first time. At the same time, other unresolved residues are retained and the spent liquor is thus reusable.
  • the waste liquor is optionally passed into the waste water drain or in a storage tank, the spent liquor can be stored for recycling.
  • either fresh water or purified waste liquor is supplied to the container from the storage tank.
  • a corresponding washing or cleaning machine in Abpumpstrang a catalyst for the surfactants used and a filter for entrained in the waste liquor residuals.
  • the waste liquor contains unused surfactants and undissolved residues that pollute the effluents if they were not removed from the waste liquor or at least predominantly removed.
  • the derived from the container Waste liquor is first freed according to the invention in the catalyst of residual surfactants, which are also partly converted into undissolved residues. Thereafter, the waste liquor is fed to a filter which is adapted to separate undissolved residues from the liquor. The at least predominantly liberated from the residues waste liquor can then be routed through the wastewater discharge to the public sewer network, without endangering this ecologically.
  • the washing or cleaning machine can be trained according to the invention in such a way that between the filter and the wastewater drain an adjustable Laugenverteil thanks is arranged, whose input with the filter whose one output with the Wastewater drain and the other, alternatively acting output is connected to a storage tank. In that case, the waste liquor, which can be recycled again, can then be temporarily stored for further use.
  • the storage tank has an output which is connected via a return pump with an adjustable fresh water distribution device whose one input to the fresh water inlet, the other, alternatively acting input to the return pump and the output to the container connected is.
  • the container can be fed either with fresh water or with reusable waste liquor.
  • a decision as to whether fresh water or purified spent liquor is to be used may be made dependent on the quality of the spent liquor attached in the connection from the filter to the waste water drain being sufficiently good and that a level sensor mounted in the holding tank has a sufficiently large amount of storage has signaled from purified waste liquor.
  • the catalyst has a capacity sufficient for a calculated life of the washing or cleaning machine.
  • the capacity, z. B. because of intensive use of the washing or cleaning machine is still insufficient, the catalyst can be replaced by the customer service.
  • the filter can according to a development of the invention also have a function by which he holds back soluble components of the waste liquor.
  • a component of the filter can be constructed as an activated carbon filter.
  • the filter can also be made interchangeable or regenerable.
  • a laundry drum 1 is shown, which is rotatably mounted in a container, namely a tub 2 of a washing machine otherwise not shown, about a horizontally arranged axis 3.
  • a lye drain 4 is attached, which is connected via a drain line 5 with a drain pump 6.
  • a drain pump 6 is connected to a waste water outlet 7.
  • a catalyst 9 and a filter 10 are connected in the line 8 between the pressure side of the drain pump 6 and the waste water outlet 7. Furthermore, this compound also contains a Laugenverteil worn 11, a two-way valve through which the waste liquor optionally in the waste water drain 7 or - as shown - can be passed to a storage tank 12. This decision is made by a controller 13, as explained below.
  • a line 14 opens with a return pump 15 whose pressure side is connected to the input of a fresh water distribution device 16.
  • the line 14 and the pump 15 connections to the fresh water inlet 17 of the tub 2.
  • the other input of the fresh water distribution device 16 is connected to the fresh water network 18.
  • the fresh water network 18 is connected to the fresh water inlet 16.
  • a sensor 19 is arranged, through which the quality of the waste liquor in this line 8 can be measured in terms of their ecologically harmful components, such as the proportions of surfactants and relevant solids. These measurement results are permanently reported to the control device 13.
  • level signals are supplied from the level sensor 20 in the storage tank 12 to the controller 13. From these signals and the known progress of the program stored in the control device 13, the control device can decide on the respectively required setting of the liquor distribution device 11 and / or the fresh water distribution device 16.
  • the process for purifying the waste liquor can be easily performed.
  • a treatment section in the program for example, lye pumped out of the tub 2 by the drain pump 6.
  • This waste liquor is freed of unconsumed surfactants in the catalyst 9 and fed to the filter 10, where the waste liquor is freed from suspended residues.
  • a filter stage is included, which can detect dissolved residues, eg. As an activated carbon filter, such residues are removed.
  • the waste liquor flows through the conduit section 8, in which the sensor 19 is mounted. He now measures the concentration of remaining in the waste liquor and ecologically questionable residues and reports the measurement result to the controller 13th
  • the control device 13 can decide on the basis of a comparison with predetermined threshold values and on the basis of the upcoming program section, whether the waste liquor can or should be supplied to the waste water outlet 7 or the storage tank 12. Accordingly, the alkali distribution device 11 is controlled. However, if the storage tank 12 is already filled, the level sensor 20 reports this circumstance to the control device 13, which then sets the liquor distribution device 11 unconditionally for discharging the waste liquor through the waste water outlet 7.
  • the level sensor 20 is first queried about the liquor level in the storage tank 12. If the liquor level is sufficient, the control device 13 can switch the fresh water distribution device 16 to the input which is connected to the pressure side of the return pump 15 and switch on the return pump 15. As a result, cleaned waste liquor is removed from the storage tank 12 and supplied to the tub 2 until the liquor level is no longer sufficient for this. Is then still fresh water for the filling in the tub 2 required, then the controller 13 switches the fresh water distribution device 16 back to the fresh water supply 18 and leaves the fresh water supply as long until the level in the tub 2 - a corresponding level measuring required - sufficient. In the case of a level from the outset in the storage tank 12, the latter takes place in the same way.
  • the quality sensor 19 detects a filter quality of the waste liquor which is insufficient both for recycling and for discharging the waste liquor, then the waste liquor outlet 7 is controlled only if the control device can not decide to interrupt the program flow at all.
  • the user of the washing or cleaning machine is signaled that the catalyst 9 and / or the filter 10 must be cleaned, regenerated and / or replaced or should. If necessary, the machine is also locked for further use in connection with lye.
  • drains are provided on these vessels, which are indicated by valve-controlled drain lines 21 and 22.
  • the features described can be used in an adequate manner, on the one hand to protect sewage from polluting waste liquor and on the other hand to use waste liquor with sufficient cleaning for subsequent processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP09172299.1A 2008-10-10 2009-10-06 Verfahren zum Reinigen einer Ablauge einer Wasch- oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens Not-in-force EP2175062B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09172299T PL2175062T3 (pl) 2008-10-10 2009-10-06 Sposób oczyszczania zużytej kąpieli piorącej w pralce albo maszynie czyszczącej oraz maszyna do przeprowadzania tego sposobu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008042749A DE102008042749A1 (de) 2008-10-10 2008-10-10 Verfahren zum Reinigen einer Ablauge einer Wasch-oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens

Publications (2)

Publication Number Publication Date
EP2175062A1 EP2175062A1 (de) 2010-04-14
EP2175062B1 true EP2175062B1 (de) 2014-09-03

Family

ID=41559636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09172299.1A Not-in-force EP2175062B1 (de) 2008-10-10 2009-10-06 Verfahren zum Reinigen einer Ablauge einer Wasch- oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens

Country Status (3)

Country Link
EP (1) EP2175062B1 (pl)
DE (1) DE102008042749A1 (pl)
PL (1) PL2175062T3 (pl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086137B4 (de) * 2011-11-11 2019-08-22 BSH Hausgeräte GmbH Waschmaschine mit Filtrationsvorrichtung und Verfahren zu ihrem Betrieb
DE102011087202B3 (de) * 2011-11-28 2013-03-14 BSH Bosch und Siemens Hausgeräte GmbH Filter und wasserführendes Haushaltsgerät
DE102012205827B4 (de) * 2012-04-11 2023-08-31 BSH Hausgeräte GmbH Verfahren zur Beurteilung einer in einem Hausgerät zu speichernden oder gespeicherten wässrigen Flüssigkeit und hierfür geeignetes Hausgerät
DE102013224521B4 (de) * 2013-11-29 2016-06-09 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
CN105986433B (zh) * 2015-02-02 2019-10-25 青岛海尔智能技术研发有限公司 洗衣机
CN106149280B (zh) * 2015-03-30 2020-05-05 青岛海尔洗衣机有限公司 一种洗衣机控制方法及洗衣机
HUE052456T2 (hu) * 2017-04-06 2021-04-28 Scandinavian Water Tech Ab Rendszer és eljárás ruha mosásra tisztított vízzel
DE102019203809B3 (de) * 2019-03-20 2020-07-02 E.G.O. Elektro-Gerätebau GmbH Wasserführendes Haushaltsgerät und Verfahren zu seinem Betrieb
CN109801148B (zh) * 2019-03-28 2023-02-28 广州市格利网络技术有限公司 可重复使用餐饮用具的推荐方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540335A1 (de) * 1985-11-14 1987-05-21 Licentia Gmbh Verfahren zur reinigung von waschgut
IT1267712B1 (it) 1994-04-01 1997-02-07 Zanussi Elettrodomestici Lavabiancheria con serbatoio perfezionato di recupero dell'acqua
DE19709085C2 (de) 1996-05-15 2002-05-08 Miele & Cie Verfahren zum Waschen von Wäsche unter Verwendung eines Filtrationsverfahrens
JP2000014985A (ja) 1998-06-30 2000-01-18 Daewoo Electronics Co Ltd 補助水タンクを備えたドラム式洗濯機及びそれを用いた洗濯方法
DE10355139A1 (de) * 2003-11-26 2005-06-30 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einem System zur Wasseraufbereitung
JP2006034716A (ja) * 2004-07-28 2006-02-09 Sanyo Electric Co Ltd 洗濯機

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Publication number Publication date
EP2175062A1 (de) 2010-04-14
PL2175062T3 (pl) 2015-04-30
DE102008042749A1 (de) 2010-04-15

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